Battery Hydrometers

Hydrometers are an easy, affordable tool to test your airplane battery. We carry specialized hydrometers that are ideal for your toolbox and for do-it-yourself battery testing. Try the Coleman Cable 991 Mini Battery Tester, priced at $1.39. This inexpensive battery tester is acid-resistant and is equipped with an eight-inch glass filler tube. The Mini Battery Tester is an unbeatable product at an unbeatable price. We carry two additional Coleman Cable Hydrometers, including the Premium Hydrometer. This $2.99 product is designed to measure the specific gravity of electrolytes in your battery to reveal its charge level. Priced at $3.99, the Coleman Cable Professional Hydrometer also measures the specific gravity of electrolytes and helps maintain the best battery pH levels. Our Gill FR-1 Battery Hydrometer will monitor your electrolyte levels with ease. This Gill hydrometer is offered at $24.99, and is made of the highest quality products so you can check your battery for years to come.

If you have any additional questions, we encourage you to check out our knowledgeable Help Center.

Hazmat Item Details

If the item that you are trying to ship is deemed Hazmat you may have an additional fee added to your order when you check out. Items are deemed Hazmat as per the Section 14 Transport Information located in the item's Material Safety Data Sheet (MSDS). Sorry, but things that can go "boom" are hard to ship and we have to pass on our fees.

Flammable or explosive items such as Fire Extinguishers, MEK, Toluene, Paint Thinner, etc. are subject to a $25.00 Hazmat fee via ground shipping methods. However, the majority of Hazmat items have no fee when shipping with a ground method.

Most Hazardous Goods are subject to air and international transport fees. This fee is $40 for domestic air shipping methods and $80 for international shipping methods.

Mail the completed form with the original UPC code from the product package and a copy of your sales receipt with the eligible product circled postmarked no later than 1/1/2012. Service activation is required; mail in one of the following options as proof of service activation: